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Optional Methods in Java Interface
... different variants of collections (eg: readable, writable, random-access, etc.) he'd only have very coarse set of interfaces, primarily
Collection, List, Set and Map, and then document certain operations as "optional". This was to avoid the combinatorial explosion that would result from fine-grain...
What exactly is Type Coercion in Javascript?
... = it is an assignment operator - which assigns values such as var a = 3;, etc
(below operators are for comparison)
In this case == Javascript converts/coerces the datatype to another and then compares it.
In this case === Javascript doesn't convert/coerces the datatype
In order to avoid bugs ...
How Do I 'git fetch' and 'git merge' from a Remote Tracking Branch (like 'git pull')
...le to merge them into the local branch once I have updated them with 'git fetch'.
5 Answers
...
Why not infer template parameter from constructor?
...me T>
class MyClass {
MyClass(const MyClass&) =default;
... etc...
};
// usage example modified from the answer
MyClass m(string("blah blah blah"));
MyClass *pm; // WHAT IS THIS?
*pm = m;
Here, as I noted in the comments, there is no reason for MyClass *pm to be a legal declaratio...
jquery's append not working with svg element?
...ue works with "hard coded" or DOM manipulated ( = document.createElementNS etc.) SVG only. If Raphael is used for creating elements, (according to my tests) the linking between Raphael objects and SVG DOM is broken if $("#cont").html($("#cont").html()); is used. The workaround to this is not to use ...
XSD: What is the difference between xs:integer and xs:int?
...er. That form of words implies an implementation in memory (or registers, etc) within a binary digital computer. XML is character-based and would implement the maximum 32-bit signed value as "2147483647" (my quotes, of course), which is a lot more than 32 bits! What IS true is that xs:int is (ind...
When would I need a SecureString in .NET?
... better security with sensitive information (like credit cards, passwords, etc.). It automatically provides:
encryption (in case of memory dumps
or page caching)
pinning in memory
ability to mark as read-only (to prevent any further modifications)
safe construction by NOT allowing a constant st...
Is there more to an interface than having the correct methods
...happens when more than one parallel superclass implement the same method?, etc.)
Along come interfaces...
If we make Animal and Vegetable classes, with each implementing Growable, we can declare that our Cow is Animal and our Corn is Vegetable. We can also declare that both Animal and Vegetable a...
Immutable vs Mutable types
... bytearray()
set type: set()
mapping type: dict()
classes, class instances
etc.
One trick to quickly test if a type is mutable or not, is to use id() built-in function.
Examples, using on integer,
>>> i = 1
>>> id(i)
***704
>>> i += 1
>>> i
2
>>> id(...
The provider is not compatible with the version of Oracle client
...o issue since moving over to it / you can set your projects back to AnyCPU etc and it works great :)
– Tod Thomson
Nov 28 '13 at 5:58
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